Assigm



E. M. HALE.

TURBINE-WHEEL.

No. 192,648. Patented July 3,1877.

Illl I if MFEI'ERS, PKOTU-UTHOGRAPHER, WASHINGTON. D C.

EZRA M. HALE, 0 KANSAS cITY, MISSOURI, ASSIGNOR TO JAMEs TALLEY,

. JR, OF sAME PLAoE.

IMPROVEMENT IN TURBINE WHEELS.

Specification forming part of Letters Patent No. 92,648, dated July 3,1877; application filed May 24,1877.

To all whom it may concern Be it known that I, EZRA M. HALE, of KansasCity, in the county of Jackson and State of Missouri, have invented anew and useful Improvement in Turbine Wheels, of which the following isa specification:

This invention has for its object the construction of a turbine Wheel,in which the buckets shall be arranged around the periphcry of a solidcenter piece, and set at an angle of, say, thirty degrees, more or less,with the radial lines of the Wheel, and arranged within the surroundingcase or housing, so that two or more of the said buckets shallsimultaneously receive the force of the incoming water i from theinduction-pipe, the case being constructed so that this distribution ofthe water upon the wheel is possible.

The invention will be readily understood by reference to theaccompanying drawings, of which Figure l is a sectional elevation of theim;

proved turbine wheel, taken in a plane perpendicular to thedriving-shaft. Fig. 2 is a sectional elevation of the same, takenthrough the longitudinal axis of the driving-shaft.

The center part of the wheel A is a solid drum, which has aperiphery-rim, a, of the full width of the thickness of the chamber B,in which it revolves.

The chamber B is formed inside of the easing B, the construction ofwhich will be'presently more fully described.

The wheel A is mounted on the drivingshaft 0, 'which passes through thesides of the casing, and suitable bearings should be provided on theoutsides of the case for the supports of the said shaft.

The periphery of the wheel A is studded with buckets a at shortintervals, and these buckets have their working-faces formed in straightlines, and set at angles of about thirty degrees, more or less, withradial lines which would cut the base of them.

The chamber B, except at the inlet and outlet, is cylindrical in form,and is concentric with the wheel A.

The inlet-pipe D is connected with the periphery of the casing B, anddelivers the water into an ecoentrically-formed cavity, 6, of thechamber B, as shown in Fig. 1.

The chamber 11 extends from the inlet-point b to 12 a distance of aboutone-quarter, more or less, of the circumference of the Wheel A. TheWidth of the chamber b at the point I) is about equal to one-eighth orone-quarter of the width of the buckets, moreor less, and from this wideend b it is gradually contracted in width toward 11 at which pointitforms a tangent with the circular line of the cavity of the chamber B,as is clearly shown in Fig. l.

The effect of this construction of the case A is to allow the incomingwater from D to pass along into the cavity or chamber 1), from which itwill be forced to impinge upon two or more of the buckets asimultaneously, thereby expending upon the wheel a larger amount offorce than could be derived from its discharge upon a single bucket.

The outlet E is formed in the part of the case B opposite to theinlet-pipe D, and should be snfl'ioiently large to permit the free flowof any water that may be admitted from D. A considerable excess in thesize of the outlet E is preferable.

Having thus described my invention, I claim-- 1. The case B, constructedwith an eccentrically-enlarged inlet-chamber, b, tangentially connectedwith the chamber B at b and thence gradually enlarged to the point ofinlet at N, as and for the purpose set forth.

2. The wheel A, having sloping peripheral buckets a and the casing B B,having the tapering inlet-chamber b,.combined and arranged as describedand set forth.

THoMAs A. RUGKER, FRANCIS R. LONG.

